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What type of batteries are you using?

  • Standard Lead Acid

    Votes: 16 55.2%
  • Premium Lead Acid

    Votes: 6 20.7%
  • Nickel Metal Hydride

    Votes: 2 6.9%
  • Lithium Ion

    Votes: 1 3.4%
  • Lithium Polymer

    Votes: 1 3.4%
  • M1

    Votes: 1 3.4%
  • Flooded Nickel Cadmium

    Votes: 2 6.9%
  • Other

    Votes: 0 0.0%

Battery Question

30508 Views 37 Replies 19 Participants Last post by  jrab
Is everyone still using lead acid or have any NiMh, Li-Ion or Li-Po options become available? I know the original tesla roadster design called for something like 7000 Lithium Ion battery packs from laptops to make the superpack they were going to use and M1 batteries were supposed to replace those, but what's current?
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You left out flooded NiCad, which is what I am using.
I don't have my EV conversion finished past the gutting stage, but it will be using a sealed lead-acid type of battery primarily to limit maintenance requirements over flooded because half of them will be difficult to access.

No other technology is remotely financially feasible for me at this point.
batteries are key

I used to have some pure electric EVs but the batteries have always been an issue with 4-5 year life from lead acid. I would only use sealed lead acid.

Now I see the only way to move ahead is with the advanced batteries like NiMH and Lithium. I now drive a 2005 Prius and I will make it into a plug-in hybrid. I am very willing to pay 10K for a higher capacity lithium battery pack. Mine is a salvage title so I won't lose a warrenty since I didn't get one. The Prius is so reliable I don't worry. I save enough to go Plug-in.

I have contacted every PHEV converter and only recieved one offer from hybrids-plus in Colorado. It would be 24K for a small 20 mile range pack. The 60 mile setup would be 36K. I will have to wait a little longer.

I feel the only way to advance EVs is to use advanced batteries. The cost will come down the more we use them. A Tesla at 92K or eBox at about 70K are more than the PHEV I think is resonable. So far only the promised plug-in will be affordable now. Someday more EVs will be in the 20-30K range and we can all afford a good one that is safe with non toxic long life batteries.
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Hopefully we'll also never see this on a car-battery scale either!

Overcharging LiPo Cells
I selected PowerSonic (local company)PG-12V140FR , 144 Amp Hour batteries. I hope they work out.
When they run out I'll see where the price of Valence, A123, Altairnano, ThunderSky batteries are, and see what I can do.
Just bumping this to the top. I wanna know what everyone's using :)
the bolt in terms like to strip out and they are super hard to keep tight PG-12V140FR
the bolt in terms like to strip out and they are super hard to keep tight PG-12V140FR
What makes them strip out? What about using belleville washers as recommended on the EVDL?
I have Lithium batteries in my 2WD Jeep. I am wanting to upgrade to a 4WD jeep, any advice on how to do that? My other post did not seem to take.

I have Lithium batteries in my 2WD Jeep. I am wanting to upgrade to a 4WD jeep, any advice on how to do that? My other post did not seem to take.

Hi Eddie, have you seen this guy's conversion for his 4WD jeep cherokee?
Should I change Standard lead Acid to Standard Flooded Lead Acid and the same with premium?
Depends what you want to know.
I'd like to know performance/price/make/model.

Lead Acid
Starting batteries / Deep cycle batteries

Flooded/Wet cell batteries
Valve Regulated Lead Acid (VRLA):
  • AGM: Absorbed Glass Mat batteries
  • Gel cell Batteries
  • lithium iron phosphate as cathode (LIFEPO4 technology)
  • Lithium Titanate (Altairnano)
  • Lithium Phospahte (A123)
  • Lithium Phosphate (Valence)
  • Nickel-Cadmium (NiCad)
  • Nickel Metal Hydride (NiMH)
  • NickelZinc

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Ok you gave me an idea. How about a price/performance graph? Do we have all the figures we need? I'll produce it if anyone can get me the data.
My current plan is to use this batery. Looking at it now, these have a max ambient charge temperature of 104F. I commonly see 120F in my garage. Maybe I should install a decent size fan to dissipate heat. I know many people use a small fan to exhaust poisonous gasses, but that will not keep heat down around here.
For those that DO have the $$$ I can get you anything you want custom built. LiMn, LiFe, Ni-Zn
I need to know voltage, Ah desired, max current discharge needed, avg/nominal current discharge. and any dimensional req's.
check out
serious buyers only
Hi Andy,
Do you have any references?
Are there any vehicles on the road we can check out using your batteries?


Also there's a parts vendor section here:
The AGM and Gel cell Batteries are never listed as Deep Cycle but I take it they can handle a deep discharge just fine? Anyone know?
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